Gas stove



Dec. 19, 1922. 1,439,108.

J. E'. KENNEDY.

GAS STOVEl FILED 001.29. 192|.

o o o o 0 ttouuq 1 land others that will appear as the invention is better understood, the inA Patented Der. 19, i922.

Midi? S'FTES maaien* revisar GAS STOVE.

To all ic hom. t may concern:

Be it known thatl, Limits E. KENNEDY, a' citizen of the United States of America, residing at Washington, in theI District of Columbia, have invented certain new and useful Improvements in Gas Stoves, of which the following` is a specification.

This invention relates to certain new and useful improvements in gasstoves and has particular reference to improved burner and grid constructions' forgas stoves, the pres-` ent application being a continuation, in part,'of my copending application Serial Number 482,810 iiled December 23, 1920, upon gas stoves.

The primary object of the invention is to provide an improved burner constructimiv for' gas stoves whereby the same may be con- Aveniently manufactured. in considerable quantity at a minimum expense with the resultant product extremelyv eii'icient and durable.

Another object of the invention is to provide a casing or hood for confining. thelheat of the burner wherein improved means is provided for connecting said hood with the grid of a gas stove.

With the above general objects in view the nature of vention consists in the novel form, combination and arrangement of parts lhereinafter more fully described. in' connection.

.with the Aaccompanying drawings, in which like characters of reference indicate similar parts throughout the views.

In the drawings,

Figure 1 is a fragmentary vertical sectional view of a gas stove employing a burner and a heat confining hood constructed in accordance with the present invention, l

Figure 2 is an inverted plan view of the grid shown in Figure 1 with the heat conning hood removed,

Figure 3 is a top plan view of the burner shown in Figure 1, f.

Figure 4 is a fragmentary elevational view of the grid shown in Figure 2, and

Figure 5 is an enlarged fragmentary sectional view taken upon line V-V of Figure 1.

Referring more in detail to the several views, the present invention is shown in connection with a single burner plate stove embodying a frame 5 having an opening there4 yat diametrlcally opposite points Application led October 29, 1921. Serial No. 511,283.

in with the portion of the frame about Said opening downwardly offset .to provide la common form of ledge for supporting the grid which may be of cast metal with its margin engaging the ledge 6 and having a central depending sleeve 8 detining a circular central opening through the grid,` suitable radial fins 9 `being formed on the upper surface ofthe grid and extending inwardly toward the center of the latter opening as shown clearly in Figure 2 `wherein alternate ones of the fins 9 are shorter than the remaining ones of the same.

ln` accordance with the present invention, the grid 7 is provided at substantially uniiiormly spaced points externally of the sleeve portion 8 thereof with single lugs 1() and a pair of lugs 11, all of said" lugs being se'p arated from the horizontal or body portion of the gridby means of kerfs or grooves as clearly shown at 12 in Figure e with respect yupper margin to the sleeve portion 8 of the"` grid, andthis hood is of sufficient height to depend below the sleeve portion 8 and surround the` burner 15 as shown clearly in Figure l1. `The tubev or hood 13 is provided with cut-outs or notches in its loweredge as clearly illustrated at 16 and 17 respectively adapted to receive the usual supporting lug 18 which is cast on the burner andthe Vinternally threaded inlet 1.9 which is also cast on the burner. n

The present invention aims 'to provide a simple and efficient means for securing the hood 13 upon they sleeve 8 and for this purpose the tubular hood 13 is preferably made of slightly greater internal diameter than the external diameter of said sleeve 8 with its upper margin inturned as at 30 so as to slightly reduce the diameter of the hood at this point to. such an extent as to allow the hood to be forcibly snapped past the lugs 10 and 11 until the inturned margin 2O engages behind said lugs in the grooves or kerfs 12. When thus positioned, the seam 14 is snugly positioned between the pair of lugs 11 and the hood is nearly permanently held onto the grid sleeve.

The burner l5 includes a as clearly shown in .Figure 1 including a pluhollow cast body rality of radial burner members 21 arranged in spaced relation and connected'by integra-l outwardly inclined webs 22, the body being preferably open. atr the center so as to provide a cylindrical inner wall 23 which also connects the burner members 2l, the webs 22 being extended at an outward inclination for the purpose of draininggrease or the like as will be apparent from an inspection of Figure l.` The bottom edges of the side walls of the burner members 2l join with the edges of the webs 22, and being similarly inclined7 provide comparatively large Space between the bottom wall 24 and the webs'fZQ for the instantaneous vpassage of the gas to all of the burner membersQl from the inlet 19 with a mininflnm obstruction, which space gradually increases in size from the outer wall of the burner to the inner wall thereof. The burner members 2l are provided with V-shaped rool1 or top wall portions which merge with slightly inclined nearly vertical side walls, the lower edges of which connect with the webs 22 and by reason of this particular formation of the burner ymembers practical drainage thereoi2 is insured while the liability ofthe burner holes 25 becoming clogged is reduced to a minimum, saidr burner holes bein'gpro-vided in considerable quantity through the top vwalls of the burner members. y p y a p The body of the burner is preferably cast with the bottom open and with the lower margins of the inner andouter walls thereof set at an inclination as clearly seen in V.Figure 1 so that when the bottom wall 24 has its inner and outer margins flanged over .0n the lower margins of saidr walls as at y26, said bottom wall is effectively held to the body portion and; with gas-tight joints; so that leakage of the gas between the body and bottom members will not occur. In this way, the body portion may be `cast without nasales parting'i'ronithe spirit and scope of the invention as claimed. y

llfhat is claimed as new is: v

l. lnia gas stove, a grid including-a horizontal plate portion with central opening and having a depending sleeve boundingv said opening and pro-vided with externa-l lugs separated from the horizontal plat-e portion of grooves/and a sheet metal ytublilar 4heat retaining hood depending :tromtlie tubular portion of the' grid,"s'aid' hood being telescope-d onto said tubular portion of toA the grid'and having an inturn'ed upper marF gin engaging in said grooves.r f

2. In agas stove, a grid including ahori- `Zontal plate portion with af central 'opening and havinga depending sleeve vbounding` said 'opening and provided with external lugs separatedv from; the'horizontal 'plateportion by grooves, and a sheet metal tubular heat retaining hood depending fromthel'tubular portion 'of the grid, 'sa-id hood being telescoped vo'nt'ov said tubular portion of the and having` 4an inturned 'upper margin engaging in said grooves, two of said 'lugs being arranged in adjacent spaced relation, and said hood comprising a. formed strip of sheet metal with an interlocking seam` joint between its ends said two lugs. K

In testimony whereof I' aflix my signature.

JAMES E. KENNEDY.

snugly received between 

